wheres the best place to buy 62 grain brass case ammo?
In .223, try Natchez for both FAE and Win, also Ammoman carries FAE.
In 5.56 SS109, check out HotShot at Century Arms Intl.
If USGI 5.56 is of interest, several vendors carry XM855.
See the Ammo pricing pinned post.
IMI makes 5.56 SS109 but they have limited distribution in the USA.
Botach may carry it, but the reliability of their service is an iffy issue, based on past member posts.